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Show that the area of the triangle forme...

Show that the area of the triangle formed by the lines `y=m_1x+c_1,""""y=m_2x+c_2` and `x=0` is `((c_1-c_2)^2)/(2|m_1-m_2|)`

A

`|((c_(1)-c_(2))(d_(1)-d_(2)))/(m_(1)+m_(2))|`

B

`|((c_(1)+c_(2))(d_(1)-d_(2)))/(m_(1)-m_(2))|`

C

`|((c_(1)+c_(2))(d_(1)+d_(2)))/(m_(1)+m_(2))|`

D

`|((c_(1)-c_(2))(d_(1)+d_(2)))/(m_(1)-m_(2))|`

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The correct Answer is:
A
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